2006"Oskar van Deventer designed this puzzle quite some time back, but to my knowledge it has not yet been available to collectors. This is a very difficult interlocking puzzle. So called 2-in-1 because the first puzzle is to figure out what shape it makes, and the second is to make that shape. Ingenious design using full dados instead of higher level cuts actually makes finding a solution more difficult, as the open spaces concealed in the puzzle allow many more false solutions.
Constructed of some of my finest exotic and dense hardwoods, this puzzle is substantial and heavy. Once solved it displays beautifully." -Eric Fuller

2013"I made a few of these back in 2006 and always wanted to revisit the design. 2-in-1 is a twelve piece interlocking burr with a unique solution and a couple challenges; the first puzzle is to figure out what shape it makes, and the second is to make that shape. Ingenious design using full dados instead of higher level cuts actually makes finding a solution more difficult, as the open spaces concealed in the puzzle allow many more false solutions.
I rounded up enough lumber to make this from 12 different species, which in my opinion turned out to be very pleasing. Fit is nice, not too tight, not too loose, just right in the 60% shop humidity I have now. Crafted from .750 stock which leaves it large enough to handle comfortably but small enough that it doesn't hog space on your puzzle shelf." -Eric Fuller